1000 GPD 4 X 21 OR 2.5 X 40 inch
Same Great Membrane 2 Different configurations...You choose
TRUE Thin Film Composite (TFC) Commercial Reverse Osmosis Membrane.
This model is rated for 100 Gallons per Day with a stabilized salt rejection of 98.6%.
This will fit a 4 X 21 inch RO Membrane housing.
For an additional $9 we will initiate water production on your RO Membrane, and give you a report of the rejected TDS, the flow rate for the membrane at a specific pressure and temperature. Just select "wet test" under the options.